초록

Additives and treatment fluids with improved shale inhibition, and associated methods of use in subterranean operations, are provided. The additives and treatment fluids used generally comprise a shale-inhibiting component and one or more silicates.

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What is claimed is: 1. A subterranean treatment fluid comprising: an aqueous base fluid; a shale-inhibiting component that comprises a nanoparticle source comprising a heterocyclic compound comprising nitrogen, wherein at least a portion of the nanoparticle source comprises nanoparticles having an

What is claimed is: 1. A subterranean treatment fluid comprising: an aqueous base fluid; a shale-inhibiting component that comprises a nanoparticle source comprising a heterocyclic compound comprising nitrogen, wherein at least a portion of the nanoparticle source comprises nanoparticles having an average particle size of less than about 400 nanometers; and one or more silicates selected from the group consisting of sodium silicate and potassium silicate. 2. The treatment fluid of claim 1 wherein the nanoparticle source comprises a plurality of crosslinked polymers. 3. The treatment fluid of claim 1 wherein the nanoparticle source comprises polyvinyl pyrrolidone. 4. The treatment fluid of claim 1 wherein the shale-inhibiting component is present in an amount in the range of from about 0.5% to about 10% by volume of the treatment fluid. 5. The treatment fluid of claim 1 wherein the silicates are present in an amount in the range of from about 0.5% to about 10% by volume of the treatment fluid. 6. The treatment fluid of claim 1 wherein the treatment fluid further comprises at least one of the following: a salt; an antifoam agent; a biocide; a bridging agent; a corrosion control agent; a dispersant; a flocculant; a fluid loss additive; a foamer; a gas; an H2S scavenger; a lubricant; an oxygen scavenger; a scale inhibitor; a viscosifier; a weighting agent; or a derivative thereof. 7. A subterranean treatment fluid comprising: an aqueous base fluid; a shale-inhibiting component that comprises a nanoparticle source comprising at least one of the following: a heterocyclic compound comprising nitrogen or a rubber latex comprising at least one emulsion-polymerized copolymer of 1,3-butadiene and styrene, and wherein at least a portion of the nanoparticle source comprises nanoparticles having an average particle size of less than about 400 nanometers; and one or more silicates selected from the group consisting of sodium silicate and potassium silicate in an amount of from about 2.5% to about 15% by volume of the treatment fluid. 8. The subterranean treatment fluid of claim 7 wherein the nanoparticle source comprises polyvinyl pyrrolidone. 9. A subterranean treatment fluid additive comprising: an aqueous base fluid; a shale-inhibiting component that comprises a nanoparticle source comprising a rubber latex comprising at least one emulsion-polymerized copolymer of 1,3-butadiene and styrene, and wherein at least a portion of the nanoparticle source comprises nanoparticles having an average particle size of less than about 400 nanometers; and one or more silicates in an amount of from about 2.5% to about 15% by volume of the subterranean treatment fluid additive. 10. The additive of claim 9 wherein the nanoparticle source comprises a plurality of crosslinked polymers. 11. The additive of claim 9 wherein the silicates comprise at least one of the following: sodium silicate or potassium silicate.